Update customize-data-prep doc
Update customize-data-prep doc

BojianLi/PredictionIO,michaelshing/PredictionIO,hsavit1/PredictionIO,initChan/PredictionIO,BuildAPE/PredictionIO,himanshudhami/PredictionIO,indranig/PredictionIO,doron123/PredictionIO,jingyidata/PredictionIO,Ribeiro/PredictionIO,rbo7nik/PredictionIO,alex9311/PredictionIO,mars/incubator-predictionio,arudenko/PredictionIO,EmergentOrder/PredictionIO,initChan/PredictionIO,hsavit1/PredictionIO,doron123/PredictionIO,takezoe/incubator-predictionio,wangmiao1981/PredictionIO,BuildAPE/PredictionIO,EmergentOrder/PredictionIO,jingyidata/PredictionIO,ydanilenko/PredictionIO,atyenoria/PredictionIO,nvoron23/PredictionIO,atyenoria/PredictionIO,prmdsharma/PredictionIO,net-shell/PredictionIO,wenaz/PredictionIO,rsganesh83/PredictionIO,Ribeiro/PredictionIO,prmdsharma/PredictionIO,pferrel/PredictionIO,beni55/PredictionIO,schon/PredictionIO,druzbikova/PredictionIO,BojianLi/PredictionIO,biddyweb/PredictionIO,wangmiao1981/PredictionIO,marevol/incubator-predictionio,alex9311/PredictionIO,shimamoto/incubator-predictionio,ydanilenko/PredictionIO,mars/incubator-predictionio,dszeto/incubator-predictionio,biddyweb/PredictionIO,shimamoto/incubator-predictionio,elkingtonmcb/PredictionIO,codingang/PredictionIO,skmezanul/PredictionIO,himanshudhami/PredictionIO,codingang/PredictionIO,TheDataShed/PredictionIO,mars/incubator-predictionio,Ribeiro/PredictionIO,ionux/PredictionIO,himanshudhami/PredictionIO,jasonchaffee/PredictionIO,sevenihust/PredictionIO,Ribeiro/PredictionIO,akaash-nigam/PredictionIO,ch33hau/PredictionIO,stephen-corgiat/PredictionIO,cristiancrc/PredictionIO,TheDataShed/PredictionIO,ionux/PredictionIO,b-cuts/PredictionIO,jlegendary/PredictionIO,TheDataShed/PredictionIO,BojianLi/PredictionIO,net-shell/PredictionIO,beni55/PredictionIO,akaash-nigam/PredictionIO,ydanilenko/PredictionIO,adamharish/PredictionIO,druzbikova/PredictionIO,akaash-nigam/PredictionIO,net-shell/PredictionIO,EmergentOrder/PredictionIO,ch33hau/PredictionIO,dszeto/incubator-predictionio,BuildAPE/PredictionIO,ydanilenko/PredictionIO,tastatur/PredictionIO,net-shell/PredictionIO,wenaz/PredictionIO,doron123/PredictionIO,elkingtonmcb/PredictionIO,marevol/incubator-predictionio,zafarella/PredictionIO,arudenko/PredictionIO,doron123/PredictionIO,nvoron23/PredictionIO,clemp6r/PredictionIO,dszeto/incubator-predictionio,himanshudhami/PredictionIO,b-cuts/PredictionIO,marevol/incubator-predictionio,nvoron23/PredictionIO,nvoron23/PredictionIO,marevol/incubator-predictionio,djeraseit/PredictionIO,tastatur/PredictionIO,schon/PredictionIO,dszeto/incubator-predictionio,jlegendary/PredictionIO,doron123/PredictionIO,alex9311/PredictionIO,BojianLi/PredictionIO,takeshineshiro/PredictionIO,indranig/PredictionIO,prmdsharma/PredictionIO,mars/incubator-predictionio,sekaiamber/PredictionIO,atyenoria/PredictionIO,thiagoveras/PredictionIO,stephen-corgiat/PredictionIO,schon/PredictionIO,zafarella/PredictionIO,sevenihust/PredictionIO,cristiancrc/PredictionIO,michaelshing/PredictionIO,rbo7nik/PredictionIO,atyenoria/PredictionIO,djeraseit/PredictionIO,BojianLi/PredictionIO,TheDataShed/PredictionIO,thiagoveras/PredictionIO,djeraseit/PredictionIO,akaash-nigam/PredictionIO,skmezanul/PredictionIO,ch33hau/PredictionIO,TheDataShed/PredictionIO,elkingtonmcb/PredictionIO,jasonchaffee/PredictionIO,Emaasit/PredictionIO,codingang/PredictionIO,jlegendary/PredictionIO,indranig/PredictionIO,ionux/PredictionIO,indranig/PredictionIO,tuxdna/PredictionIO,Emaasit/PredictionIO,wenaz/PredictionIO,sekaiamber/PredictionIO,shimamoto/incubator-predictionio,PredictionIO/PredictionIO,tastatur/PredictionIO,beni55/PredictionIO,thiagoveras/PredictionIO,codingang/PredictionIO,takezoe/incubator-predictionio,tuxdna/PredictionIO,adamharish/PredictionIO,b-cuts/PredictionIO,druzbikova/PredictionIO,prmdsharma/PredictionIO,takeshineshiro/PredictionIO,clemp6r/PredictionIO,atyenoria/PredictionIO,PredictionIO/PredictionIO,sevenihust/PredictionIO,michaelshing/PredictionIO,takeshineshiro/PredictionIO,sekaiamber/PredictionIO,ydanilenko/PredictionIO,akaash-nigam/PredictionIO,initChan/PredictionIO,PredictionIO/PredictionIO,tuxdna/PredictionIO,hsavit1/PredictionIO,jlegendary/PredictionIO,adamharish/PredictionIO,jlegendary/PredictionIO,net-shell/PredictionIO,rsganesh83/PredictionIO,codingang/PredictionIO,prmdsharma/PredictionIO,zafarella/PredictionIO,takezoe/incubator-predictionio,arudenko/PredictionIO,Emaasit/PredictionIO,pferrel/PredictionIO,biddyweb/PredictionIO,clemp6r/PredictionIO,jasonchaffee/PredictionIO,rbo7nik/PredictionIO,jingyidata/PredictionIO,rsganesh83/PredictionIO,Ribeiro/PredictionIO,nvoron23/PredictionIO,pferrel/PredictionIO,shimamoto/incubator-predictionio,wangmiao1981/PredictionIO,indranig/PredictionIO,skmezanul/PredictionIO,takezoe/incubator-predictionio,cristiancrc/PredictionIO,stephen-corgiat/PredictionIO